What is the definition of Oculomotor Apraxia Cogan Type?
Oculomotor apraxia Cogan type (COMA) is an eye condition characterized by a defect in side-to-side (horizontal) eye movements. Because of this, most patients with COMA have to turn their head in order to follow objects in side gaze. Typically, up-to-down (vertical) eye movements are unaffected. Symptoms usually improve throughout the childhood and teenage years. COMA can also be associated with mild developmental delay and speech difficulties. Individuals with COMA may also have kidney disorders and underdevelopment of the part of cerebellum that separates the left and right hemisphere of the brain (cerebellar vermis). When other symptoms occur, COMA may be a symptom of other disorders, such as nephronophthisis or Joubert syndrome. In many instances, the cause of COMA is not known; however, researchers suspect that it is inherited in an autosomal recessive inheritance pattern. Treatment for this condition is focused on managing the signs and symptoms in each individual.
What are the alternative names for Oculomotor Apraxia Cogan Type?
- Congenital oculomotor apraxia
- Cogan's syndrome type 2
- Saccade initiation failure congenital
What are the current treatments for Oculomotor Apraxia Cogan Type?
Unfortunately, there is no cure for COMA. Treatment is focused on managing symptoms. Specialists that may be involved in the care of an individual with COMA include a nephrologist (kidney specialist), ophthalmologist (eye doctor), geneticist, and neurologist.